This foam kit is 100% needed for any ctrl keyboard without it. Huge reduction of the hollow/tinny metal sound. Simple enough to install, but you may need to lay out all the pieces to see which one will be the proper fit for your frame. The two "four piece" front foam sets can be a little confusing since they are so similar in size/shape.
Absolutely necessary upgrade for Drop CTRL keyboards BUT I do wish the keyboards would come with foam. Apparently they come with all the v2 CTRLs though
Love this kit. If you have a built out CTRL board that needs to be brought up to date, I'd highly recommend this. Greatly improves the feel / sound of the board
The overall fit is cut perfectly. It's just puffy enough that you have to compress the foam a little bit in order to screw the case down. This ensures that the foam's dampening power is maximized. The thing I appreciate the most is that this foam kit makes the keyboard feel unbelievably solid with zero feeling of any kind of looseness. It is now a very firm feeling keyboard. If you have a V1 keyboard and want to dampen the sound you would be doing yourself the biggest favor by installing this kit. Absolutely positively highly recommended. I would also recommend putting a small piece of electrical tape between the four metal plates that attach to the removable feet and the bottom case plate to keep the two pieces of metal from rattling against each other.